Jones and Shipman 540 Adventures Part 3: Can This Motor be Saved?

  Рет қаралды 3,062

Bart Harkema Metalworks

Bart Harkema Metalworks

Күн бұрын

Пікірлер: 37
@markmuranyi9289
@markmuranyi9289 2 жыл бұрын
Try watching Keith Fenner's videos on straightening prop shafts for boats. He does not weld but uses spot heating with a oxy acetylene torch and then quenches with spray water right away. The shafts he straightens are much larger in diameter and the results are fantastic. In your situation cool compressed air would probably work. Use the very small tip for your torch and just heat for 3 to 4 seconds and then quickly cool with the air. Keep the air quench on it for totally cooling. Rinse and repeat. Hope this helps for you future work. Take care.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Thanks. Yes heat with a torch would also work. I used the TIG welder because the shaft is very smal and I'm more confident to put on local heat and controle the proces. I dont have a very small torch to work with. But that would probably be more efficient and less machining.
@peem1244
@peem1244 2 жыл бұрын
Hi Bart, hope you are keeping well. Aside from knowledge and persistence, you forgot to mention 5 or 6 tons of patience required in your work. Looking forward to seeing the 540 performing. Thanks for sharing. Stay safe and keep up the good work.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Thanks. Yes it takes some patience. But it's also nice to repair something and take the time to do it right the first time. I will enjoy the machine even more after that.
@MattysWorkshop
@MattysWorkshop 2 жыл бұрын
Gday Bart, this is a great result, I always enjoy something new but I don’t think I’d be game enough to have a go myself, you really make it look easy, thanks very much for sharing your knowledge, cheers
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Well, the worst think that could happen is that I ended up with a bend shaft... ;-)
@korishan
@korishan 2 жыл бұрын
Wow! I was wondering what you meant in the previous video about welding it to make it straight. I had no idea you could do that. Great explaination on how putting a weld on a shaft can make it straight, with time. 😎👍
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Thanks!
@mftmachining
@mftmachining 2 жыл бұрын
Good job so far, Bart.
@c4t4l4n4
@c4t4l4n4 2 жыл бұрын
Shipyards use heat from a torch to straighten/pull the metal plates of the hull and deck into alignment during construction. Very interesting and it is a well payed job. It takes quite a bit of experience to get good at it.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Yes, also used in sheet metal work. But it does take experience to know how much it will move.
@c4t4l4n4
@c4t4l4n4 2 жыл бұрын
@@bartharkemametalworks2299 Hi Bart, here is a great video with some very useful info. kzbin.info/www/bejne/f6ndh2yMmrqjgrs
@HP_rep_mek
@HP_rep_mek 2 жыл бұрын
Good explanation and demonstration there👍 Came out pretty good also👏
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Thanks👍
@welderdude1
@welderdude1 2 жыл бұрын
Might need to be metalized like what Adam Booth Abomb79 does. Add enough to be able to turn it concentric. Will probably need the keyway recut.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Yes I thought about that. But I don't have a spray welder. With normal welding it will move all around. So I tried to just move it in the right direction and leave the pulley shaft part and key way original. But welding it up was plan B.
@a.bakker64
@a.bakker64 2 жыл бұрын
Wij hadden eens hefarmen en schaarpoten van een autotransporter die waren getordeerd. Deze heb ik met een vlam in een patroon verhit en steeds laten schrikken door snel af te koelen, te krimpen. Ging heel goed en je leert een hoop.
@welderdude1
@welderdude1 2 жыл бұрын
It became eccentric. Interesting repair.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Thanks
@vettepicking
@vettepicking 2 жыл бұрын
My bet was a pry bar on the pulley bent the shaft.....
@benalter7316
@benalter7316 2 жыл бұрын
very nice job thnxs
@glennstasse5698
@glennstasse5698 2 жыл бұрын
Wow, I didn’t know you could straighten a shaft that way. Very tedious work so your patience comes in handy! I hope this removes the vibration. Is there a balancing operation you can or need to perform? In any case, it appears the answer to the question in the video title is yes. Nice job.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Hi Glenn, thanks. Next step is balancing, new bearings and then turn the pulley on the bearings itself.
@wilcojuffer5940
@wilcojuffer5940 2 жыл бұрын
Hallo Bart, geweldig gedaan als ik het moest doen dan had de moker gebruikt maar dit is een veel mooier manier 👍👍👍👍👍
@Pawcu4ever
@Pawcu4ever 6 ай бұрын
Hello, thank you for this really informative 😊 just for my knowledge, instead of welding it, couldn't you just heat it up using the tig torch and let it cool down? That way you won't have to turn the weld down everytime. Thanks 😊
@Pawcu4ever
@Pawcu4ever 6 ай бұрын
Just read the other comments and realised that someone else suggested something similar 😅 thanks anyways for your videos!
@bartharkemametalworks2299
@bartharkemametalworks2299 6 ай бұрын
@Pawcu4ever Yes you could heat it up but the effect of welding is more, and personally I have a bit more control in small areas. This shaft was short and needed a tight bend. If it was longer, bigger or less bend than I would only heat it up. The effect is also relative the diameter of the shaft. Small shaft like this has little effect on heating up with a torch. You heat up almost the entire shaft (unless you have a very powerful and small torch) and ten there is little cold steel to keep it in place, so that the heated area can pull it straight when it cools down. When the whole shaft is heated and cooled it just expand and shrink but no straightening.
@Pawcu4ever
@Pawcu4ever 6 ай бұрын
I see ok that makes sense. Thanks for this! Thank you for your videos and for your feedback!
@janvanruth3485
@janvanruth3485 2 жыл бұрын
keith fenner heeft een paar videos met flame straightening. een met een uitgebreide uitleg over het hoe en waarom. komt neer op het snel verwarmen en nog sneller afkoelen.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Klopt, snel verwarmen en afkoelen is ervoor om de plaats van uitzetten en krimpen zo klein mogelijk te houden. Een andere goede serie en uitleg van het proces is van kanaal An Engineer's Findings
@vettepicking
@vettepicking 2 жыл бұрын
I would use heat and a wet rag without filler rod. For the last bit a soft mallet . That way no machining is needed.
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Yes, looking back that would probably be a better idea. I didn't expect the shaft to need so much welding and releasing the pull after turning it down again.
@goboyz8016
@goboyz8016 2 жыл бұрын
Here is another one of his videos. Not that you didn't do a nice job just another technique for you to see. kzbin.info/www/bejne/b4qbgKxpqL97hK8
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Yes, same principle. I used TIG because it gave me some more controle on the local heat.
@evanjones2539
@evanjones2539 2 жыл бұрын
Take a look at Keith Fenners videos on shaft straightening... It will teach you a lot about heat and rapid cooling without weld..
@bartharkemametalworks2299
@bartharkemametalworks2299 2 жыл бұрын
Yes Keith has some great video's on this. And I did a better explanation in on of my last vids, shaft repair of the Jones and Shipman. Btw, one of the best video's I have seen on weld and heat deformation is from An Engineers Findings: kzbin.info/www/bejne/rWK7gXewqtOVj5I
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